I can't remember where I saw it, but someone makes an 8" or 10" sub that
goes into the little netted cubby in the back. You can probably Google it.

Bob wrote:

> My reasons for installing a sub are very simple. There is no way even
> good quality 5x7 speakers (I have Boston Acoustics) in the doors can
> reproduce anywhere near *natural* bass. I am not into playing my
> system so loud to cause hearing damage or bother other drivers. I also
> did not do it to "look cool"...I am well past that point in my life.
> It's very simple...I did it because I enjoy good sound.
>
> Now, does anyone have any suggestions for placement of the sub without
> a lecture attached? :-)
>